Something is Eating my Hostas

Hello all,
Just new to planting and such. Bought a house last year that has a row of Hostas along the rear of my garage. In spite of full sun, these suckers don't stop growing. Last September I dug down about 6-8 inches to remove the root balls because I wanted to plant other plants instead of the Hostas. And the Hostas came right back! My neighbor said they have been there for 20 years.

Now that I have to keep these things, I need to figure out what is eating at them. And what I can do to stop them. See the attached picture. My wife said she dug into the soil and say a bunch of slimy things like slugs or something. No picture unfortunately.

Something is Eating my Hostas

Get some Diatomaceous Earth and spray it underneath and in between the leaves. It's not poisonous, so you don't have to worry about your pets or kids getting into it.

It's also good to spray around the perimeter of the house if you have ants coming in.

It's a white/light gray powder that looks like flour.

Oh, btw, if you don't do anything about the slugs and let them keep eating your plants this year, the plants will still come back next year just fine. But in the spring, when the Hostas start coming up again, start spraying the DE on them and spray some on top of the soil around the plants to kill the slugs before they get started.